Marine erosion creates coastal landforms and landscapes (Edexcel A-Level Geography): Flashcards
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Practise the cards
10 cards from this deck
What is wave potential energy proportional to?
What is wave potential energy proportional to?
Height, direction, duration of wind, fetch
Constructive waves: swash vs backwash
Constructive waves: swash vs backwash
Swash > backwash
Destructive waves: swash vs backwash
Destructive waves: swash vs backwash
Backwash > swash
What are berms
What are berms
Small ridges on upper beach, each from a previous high tide's highest point
Optimal angle for waves to cause most erosion
Optimal angle for waves to cause most erosion
90° to cliff face
Hydraulic action erosion process
Hydraulic action erosion process
Air in cracks compressed by waves, forcing cracks open
Abrasion erosion process
Abrasion erosion process
Sediment thrown against cliff face, wearing it down
Effect of attrition on sediment
Effect of attrition on sediment
Becomes smaller & more rounded
Rock type mainly affected by corrosion/solution
Rock type mainly affected by corrosion/solution
Limestone
Coastal erosion landform sequence
Coastal erosion landform sequence
Cave → arch → stack → stump